PRODUCTS BOILERS, PUMPS & VALVES
Dosing performance pumps Lower fuel consumption comes with SCR pumps
Wanner International has introduced two Hydra-Cell dosing performance pump ranges with mechanical flow rate adjustment. Because these seal-less pumps are true positive displacement products flow rate is directly proportionate to input shaft speed and virtually independent of system discharge pressures. Very precise, infinite adjustment of shaft speed is achieved through a simple manual adjust hand wheel. The variable speed gearboxes operate on the elasto-hydrodynamic principle, producing output torque by means of a traction fluid. This removes
the possibility of mechanical slippage between input and output, potentially experienced with friction type variators. The Hydra-Cell G03/G13 dosing range
accommodates repeatable, steady flow requirements up to 310 litres per hour at pressures up to 100 bar and flows up to 490 litres per hour at pressures up to 70 bar. The Hydra-Cell G10 dosing range accommodates repeatable flow requirements up to 732 litres per hour at pressures up to 103 bar and flows up to 1470 litres per hour at pressures below 50 bar. These mechanically adjustable dosing pumps are suitable for use in ATEX Zone 1 and 21 when coupled to compatible, explosion-proof motors which can be provided. Both ranges come with a variety of cam
profiles to meet specific flow rate adjustment requirements and a variety of pump head materials is available including cast iron, brass, hastelloy CW12MW, polypropylene, PDVF and 316L stainless steel.
Wanner International T: 01252 816847
www.hydra-cell.eu Enter 330
BBA Pumps has released the Stage IV pump units in the power range 130-560kW, fully in accordance with the 2014 European emission regulations for diesel engines in off-road applications. Pump units driven by engines with SCR (selective catalytic reduction) system use high efficiency combustion which results in lower fuel consumption and a reduction in NOx emissions by 80% from2.0 g/kWh to 0.4 g/kWh. Before the exhaust gases pass through the catalytic
converter up to 5% AdBlue is added. The NOx is converted to harmless nitrogen gas and water
vapour and released into the environment. For end users the principal benefit of pump units with SCR engines is high fuel efficiency that cuts in operating costs. The catalytic converter is designed to last the life of the engine; costs for maintenance and downtime are reduced.
BBA Pumps T: +31 (0)314 368 436
www.bbapumps.com Enter 331
Increased flow coefficient High performance polymer valves
A modular valve body design pioneered in Bürkert’s latest INOX range of space saving modular valve bodies has increased the flow coefficient of a conventional angle seat valve, reducing energy requirements and improving system flow characteristics. The inlet level and outlet level are separate. Since the fluid flow now only has to be redirected once through 180˚ this increases the flow coefficient. Separating the two levels means the inlet and outlet level
can now be connected directly with other valve bodies without additional piping. The connections of the basic bodies can be assembled in a block and designed according to user-specific requirements. A pipe connection between the single valves is no longer necessary since the fluid connection is established simply by joining the valve bodies. The bodies can be combined with standard Bürkert valve
actuator heads which can be used together with a position indicator or positioner. In addition, it is possible to integrate sensors for measuring flow rate, temperature and pressure. This solution is extremely
flexible with respect to the connecting threads and connecting technology so that it can be adapted to the requirements of each respective application.
Bürkert Fluid Control Systems T: 01285 648720
www.burkert.co.uk Enter 332
The former Pneumatics division of Bosch Rexroth changed hands in January 2014 and with this change of ownership came a new name for both the brand and company itself. Aventics offers an extremely compact, lightweight valve technology which it says promises to bring significant change to the international pneumatics market. “Traditionally only two companies
dealt in plastic valves - Rexroth and Bosch Automationstechnik,” explains chairman Dr Thomas Bruckner. “The merger doubled development capacities and brought with it an enormous amount of expertise.” In recent years the company has
continued to promote the use of high- performance plastics on this basis. The latest generation of plastic valves, the AV series is more lightweight and compact than ever, only half the weight of metal valves and as small as a business card. “The printing industry demands toluol-
resistant plastics while the food and beverage industry requires acid resistance,” explains managing director UK Stuart Cheyne. “Current valve generations such as AVENTICS’ Clean
34 SEPTEMBER 2014 | FACTORY EQUIPMENT
Line meet these requirements. Their material has been certified by the Food and Drug Administration (FDA) and feature NSF-H1 greases suitable for food products. AVENTICS plastic valves from current series production have proven themselves in both clean and high dirt, high dust environments. “Tests have shown that our plastic
valves can withstand more than 120 million switching cycles – a benchmark for the industry.” The AV (advanced valve) series is
AVENTICS’ major breakthrough in miniaturisation. It combines the advancements in plastics processing with a new design concept. They are more compact than conventional valves of the same performance level. In practice, machine manufacturers reach compressed air savings of up to 20%. They can achieve even more savings with the electropneumatic pressure regulator for application-specific pressure control within the AV system.
AVENTICS T: 01285 657999
www.aventics.com Enter 333
/ FACTORYEQUIPMENT
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